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- W3042849630 abstract "Abstract The competitive routes were found for three-component cyclization of polyfluoroalkyl-3-oxo esters, methyl ketones with 3-amino alcohols. It was shown that the reactions with 3-aminopropanol in 1,4-dioxane predominantly lead to hexahydropyrido[2,1- b ][1,3]oxazin-6-ones, and in ethanol to 3-hydroxypropylaminocyclohexenones. In contrast, cyclizations with 2-aminoethanol and its analogues, regardless of the reaction conditions, yield hexahydrooxazolo[3,2- a ]pyridin-5-ones as the main products. The trans - and cis- diastereomeric structure of heterocycles was established using X-ray and 1 H, 19 F, 13 C NMR spectroscopy, 2D 1 H- 13 C HSQC and HMBC experiments. The mechanism is proposed for competitive transformations of polyfluoroalkyl-3-oxo esters, methyl ketones with 3-amino alcohols." @default.
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- W3042849630 date "2020-07-11" @default.
- W3042849630 modified "2023-09-27" @default.
- W3042849630 title "Competitive ways for three-component cyclization of polyfluoroalkyl-3-oxo esters, methyl ketones and amino alcohols" @default.
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- W3042849630 doi "https://doi.org/10.1515/pac-2019-1216" @default.
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